CN216694176U

CN216694176U - Mechanical arm defrosting system and cabinet with refrigeration function

Info

Publication number: CN216694176U
Application number: CN202220115904.9U
Authority: CN
Inventors: 王毅
Original assignee: Beijing Smartmi Technology Co Ltd
Current assignee: Beijing Smartmi Technology Co Ltd
Priority date: 2022-01-17
Filing date: 2022-01-17
Publication date: 2022-06-07
Anticipated expiration: 2032-01-17

Abstract

The utility model discloses a mechanical arm defrosting system, which comprises a transmission device for moving a mechanical arm, a switch and a control device, wherein the switch is connected with the control device and used for sending a door closing signal to the control device under the condition that a cabinet door is determined to be closed; the control device is connected with the transmission device and controls the transmission device to move to a specified defrosting position under the condition of receiving the door closing signal. The utility model also discloses a cabinet body with a refrigeration function, wherein the cabinet body is internally provided with the mechanical arm defrosting system. According to the mechanical arm defrosting device, after the equipment door is closed, the mechanical arm automatically moves to the position of the fan of the condenser, the fan works at the maximum air quantity, the air circulation around the mechanical arm is accelerated, condensed water on the surface of the mechanical arm is removed under the action of the condenser, the mechanical arm is prevented from frosting, and other places in the equipment are prevented from frosting.

Description

Mechanical arm defrosting system and cabinet with refrigeration function

Technical Field

The utility model belongs to the technical field of air-cooled refrigerators, and particularly relates to a mechanical arm defrosting system and a refrigerator body with a refrigerating function.

Background

When opening the equipment door of forced air cooling refrigerator-freezer, during the outside air can get into equipment, because be low temperature in the equipment, when closing the cabinet door after, because the outside air admission freezer that has moisture in, lead to the internal portion of cabinet to frost very easily, also frosting easily on the arm simultaneously, can arouse the arm motion behind the frosting not smooth or directly block and die.

SUMMERY OF THE UTILITY MODEL

In order to solve the above technical problem, the present invention provides a robot arm defrosting system, which is disposed in a cabinet having a robot arm and a refrigeration function therein, the robot arm defrosting system including: transmission, switch and controlling means, wherein: the transmission device is connected with the mechanical arm and used for moving the mechanical arm; the switch is connected with the control device and sends a door closing signal to the control device under the condition that the cabinet door is determined to be closed; the control device is connected with the transmission device and controls the transmission device to move the mechanical arm to a specified defrosting position under the condition of receiving the door closing signal.

Optionally, the switch is a contact switch or an inductive switch.

Optionally, the defrosting device further comprises a humidity sensor arranged on the outer surface of the cabinet body, the humidity sensor is connected with the control device, the control device receives an environment humidity signal sent by the humidity sensor, and defrosting time is set according to the environment humidity.

Optionally, the transmission comprises a lateral movement assembly and a vertical movement assembly.

Optionally, the lateral moving assembly comprises a robot arm platform, a lateral moving synchronization belt device and a lateral moving motor, wherein: the mechanical arm platform is used for bearing the mechanical arm and the transverse moving motor; and a belt wheel of the transverse moving synchronous belt device is connected with the transverse moving motor, and a belt body of the transverse moving synchronous belt device is connected with the mechanical arm.

Optionally, the vertical moving assembly includes a vertical support, a Y-axis motor, and a Y-axis synchronous belt device, wherein: the vertical support is provided with the Y-axis motor and a Y-axis synchronous belt device, and a belt body of the Y-axis synchronous belt device is vertically arranged; and a belt wheel of the Y-axis synchronous belt device is connected with the Y-axis motor, and the mechanical arm platform is fixed on a belt body of the Y-axis synchronous belt device.

Optionally, the device also comprises a heating wire and an icing sensor; the heating wire and the icing sensor are both connected with the control device; the heating wire is used for heating the mechanical arm, and the icing sensor is used for detecting whether the mechanical arm is iced; when the icing sensor detects that the mechanical arm is iced, the control device controls the electric heating wire to heat the mechanical arm.

Optionally, the heating wire is located on the cabinet below the mechanical arm.

The utility model also provides a cabinet body with a refrigeration function, which comprises a mechanical arm and a mechanical arm defrosting system, wherein the mechanical arm defrosting system is the mechanical arm defrosting system.

Optionally, the cabinet has a condenser, a screen or a grid is arranged outside a fan of the condenser, and the defrosting position is a position close to the fan; or the shell of the condenser is provided with an air suction opening, and the defrosting position is a position close to the air suction opening.

According to the mechanical arm defrosting device, after the equipment door is closed, the mechanical arm automatically moves to the position of the fan of the condenser or the position of the air suction opening of the condenser, the fan or the air suction opening can work with the maximum air quantity, the circulation of air around the mechanical arm is accelerated, and under the action of the condenser, condensed water on the surface of the mechanical arm is removed, so that the mechanical arm is prevented from frosting.

Drawings

For purposes of illustration and not limitation, the present invention will now be described in accordance with its preferred embodiments, particularly with reference to the accompanying drawings, in which:

FIG. 1 is a schematic view of the arrangement of the mechanical arm defrosting device of the present invention in an air-cooled ice bin;

fig. 2 is a schematic view of a heating wire arrangement according to an embodiment of the present invention;

FIG. 3 is a schematic diagram of the mechanical arm defroster actuator;

in the figure: the device comprises a condenser, a suction inlet 2, a mechanical arm 3, a driving gear 4, a transverse moving motor 5, a transverse rack 6, a cabinet 7, a Y-axis motor 8, a Y-axis position sensor 9, a metal sheet 10, a Y-axis synchronous belt 11, a mechanical arm platform 12, a transverse moving synchronous belt 13, a transverse moving motor 14 and an electric heating wire 15.

Detailed Description

The principle of the air-cooled refrigerator is that a condenser 1 makes a low-temperature environment and blows cold air into the refrigerator body through a fan, and when the air passes through the condenser, moisture contained in the air can be attached to the condenser, so that the moisture content in the air is reduced, and the air blown into the refrigerator is dry. When a cabinet door of an existing air-cooled freezer is opened, outside wet air can enter, and after the cabinet door is closed, moisture in the wet air can form frost on a mechanical arm.

In order to solve the problem of frosting on the mechanical arm, as shown in fig. 1, the utility model discloses a mechanical arm defrosting system, wherein an air-cooled freezer body 7 has a refrigerating function, a mechanical arm 3 is arranged in the air-cooled freezer body, the mechanical arm defrosting system comprises a transmission device for moving the mechanical arm 3, the mechanical arm defrosting system further comprises a switch and a control device, wherein: the switch is connected with the control device and used for sending a door closing signal to the control device under the condition that the cabinet door is determined to be closed; the control device is connected with the transmission device and controls the transmission device to move to a specified defrosting position under the condition of receiving a door closing signal.

The mechanical arm defrosting device enables the mechanical arm to automatically move to the position of the fan of the condenser or the air suction opening of the condenser, the fan works at the maximum air quantity, the circulation of air around the mechanical arm is accelerated, and condensed water on the surface of the mechanical arm is removed under the action of the condenser to prevent the mechanical arm from frosting.

A contact switch is arranged between the refrigerator door and the refrigerator body 7, the time from the opening of the door to the closing of the door can be recorded by equipment, for example, the door opening state is kept for 5 minutes, and then the fan can work for 10 minutes at maximum in air cooling after the door is closed; for example, the door is opened for 10 minutes, and then the fan operates for 30 minutes at the maximum air quantity after the door is closed.

Fan operating time has the relation with ambient humidity, increases humidity transducer at cabinet body surface, need long-time defrosting when detecting that ambient humidity is high, can the short time defrosting when detecting that ambient humidity is low.

The contact switch detects the opening and closing state of the equipment door and sends a door closing signal to the control device when the door is closed; inductive switches may also be used here. The control device controls the transmission device to move to the specified defrosting position under the condition of receiving the door closing signal.

As shown in fig. 2, a heating wire 15 for heating the robot arm is further provided, the robot arm is provided with an icing sensor, which is a sensor for detecting the thickness of icing on the surface of an object, and in the present embodiment, the heating wire 15 is disposed at the bottom in the robot arm platform below the robot arm.

When the surface of the mechanical arm is frozen and the critical thickness detected by the freezing sensor is reached, the freezing sensor sends a freezing signal to the control device, the control device switches on a power supply of the heating wire 15 under the condition of receiving the freezing signal, the ice is heated into steam through the heating wire 15, then the circulation of the air channel can be accelerated at the moment, and the moisture of the steam is taken away.

As shown in fig. 1, the condenser 1 is located at one side of the top of the cabinet 7. A fan (not shown) is provided in the condenser 1, and the fan draws air or blows air so that the fan sends air around the robot arm to the condenser 1 and moisture contained in the air is attached to the condenser, thereby reducing the moisture in the air. If the fan of the condenser is externally provided with a screen or a barrier, the defrosting position is a position close to the fan; if a shell is arranged outside the fan of the condenser, that is, as shown in fig. 1, an air suction opening 2 is formed on the shell of the condenser 1, the defrosting position is a position close to the air suction opening 2.

The transmission in this embodiment will be described below:

as shown in fig. 3, the transmission device includes a transverse moving assembly and a vertical moving assembly, the transverse moving assembly includes a mechanical arm platform 12, a transverse moving synchronous belt 13 and a transverse moving motor 14, the mechanical arm platform 12 is provided with the transverse moving motor 14 and is used for bearing a mechanical arm, the transverse moving motor 14 is connected with the synchronous belt wheel through a rotating shaft, the synchronous belt wheel is connected with the transverse moving synchronous belt 13, the mechanical arm 3 moves relative to the mechanical arm platform 12, and the mechanical arm 3 realizes transverse movement under the control of the transverse moving motor 14.

The selection of motor and hold-in range will accord with service environment requirement, and equipment moves at low temperature, needs motor and hold-in range low temperature resistant, has the condensate water on the motor after opening the refrigerator-freezer door, so needs the motor to have certain waterproof grade, waterproof grade IPX5 or IPX 6.

The mechanical arm platform 12 is fixed on the Y-axis synchronous belt 11, when the Y-axis motor 8 works, the Y-axis synchronous belt 11 is driven to start to move, and the mechanical arm platform 12 follows the Y-axis synchronous belt 11 to move up and down along the Y-axis direction; a metal sheet 10 is arranged on a Y-axis synchronous belt 11, a Y-axis position sensor 9 is arranged at the upper and lower position ends of the Y-axis, and the upper and lower positions of the mechanical arm platform 12 on the Y-axis are detected by detecting the position of the metal sheet 10.

By adopting the technical scheme of the embodiment of the utility model, after the equipment door is closed, the mechanical arm automatically moves to the position of the fan of the condenser or the position of the air suction opening of the condenser, at the moment, the maximum air volume of the fan works, the circulation of air around the mechanical arm is accelerated, and condensed water on the surface of the mechanical arm is removed under the action of the condenser, so that the mechanical arm is prevented from frosting.

The above-described embodiments should not be construed as limiting the scope of the utility model. Those skilled in the art will appreciate that various modifications, combinations, sub-combinations, and substitutions can occur, depending on design requirements and other factors. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a arm defrost system, its characterized in that, arm defrost system sets up and has the arm and possess in the cabinet body of refrigeration function in inside, arm defrost system includes: transmission, switch and controlling means, wherein:

the transmission device is connected with the mechanical arm and used for moving the mechanical arm;

the switch is connected with the control device and sends a door closing signal to the control device under the condition that the cabinet door is determined to be closed;

the control device is connected with the transmission device and controls the transmission device to move the mechanical arm to a specified defrosting position under the condition of receiving the door closing signal.

2. The mechanical arm defrost system of claim 1 wherein the switch is a contact switch or an inductive switch.

3. The mechanical arm defrosting system of claim 1 further comprising a humidity sensor disposed on an outer surface of the cabinet, wherein the humidity sensor is connected to the control device, and the control device receives an ambient humidity signal from the humidity sensor and sets a defrosting time according to the ambient humidity level.

4. The robotic arm defrost system of claim 1, wherein the transmission includes a lateral movement assembly and a vertical movement assembly.

5. The robotic arm defrost system of claim 4, wherein the traverse assembly includes a robotic arm platform, a traverse belt synchronization device, and a traverse motor, wherein:

the mechanical arm platform is used for bearing the mechanical arm and the transverse moving motor;

and a belt wheel of the transverse moving synchronous belt device is connected with the transverse moving motor, and a belt body of the transverse moving synchronous belt device is connected with the mechanical arm.

6. The robotic arm defrost system of claim 5 wherein the vertical movement assembly includes a vertical support, a Y-axis motor, a Y-axis timing belt arrangement, wherein:

the vertical support is provided with the Y-axis motor and a Y-axis synchronous belt device, and a belt body of the Y-axis synchronous belt device is vertically arranged;

and a belt wheel of the Y-axis synchronous belt device is connected with the Y-axis motor, and the mechanical arm platform is fixed on a belt body of the Y-axis synchronous belt device.

7. The robotic arm defrost system of any one of claims 1-6 further comprising a heating wire (15) and an icing sensor;

the electric heating wire (15) and the icing sensor are both connected with the control device;

the heating wire (15) is used for heating the mechanical arm, and the icing sensor is used for detecting whether the mechanical arm is iced;

when the icing sensor detects that the mechanical arm is iced, the control device controls the electric heating wire to heat the mechanical arm.

8. The robotic arm defrost system of claim 7 wherein the heating wire (15) is located on the cabinet below the robotic arm.

9. A cabinet with a refrigeration function, characterized by comprising a mechanical arm and a mechanical arm defrosting system, wherein the mechanical arm defrosting system is the mechanical arm defrosting system of any one of claims 1 to 8.

10. The cabinet with a refrigeration function as recited in claim 9, wherein the cabinet has a condenser;

a screen or a barrier is arranged outside the fan of the condenser, and the defrosting position is a position close to the fan;

or the shell of the condenser is provided with an air suction opening, and the defrosting position is a position close to the air suction opening.